31.07.2010, 16:42
It is well known that invalid combo of "tilde tags" (~r~ and other such tags) in gametext will crash clients very easily, i made a filter to validate that all tags are properly closed (only 1-char long tags are supported, no others as they arent needed).
Please check the code and try to find any flaws in it:
Please check the code and try to find any flaws in it:
Код:
stock issafefortextdraw(str[]) {
new safetil = -5;
for (new i = 0; i < strlen(str); i++) {
if ((str[i] == 126) && (i > safetil)) {
if (i >= strlen(str) - 1) // not enough room for the tag to end at all.
return false;
if (str[i + 1] == 126)
return false; // a tilde following a tilde.
if (str[i + 2] != 126)
return false; // a tilde not followed by another tilde after 2 chars
safetil = i + 2; // tilde tag was verified as safe, ignore anything up to this location from further checks (otherwise it'll report tag end tilde as improperly started tag..).
}
}
return true;
}
